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/*
* Copyright 2023 Red Hat
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import
{
mkdirSync
,
readFileSync
,
readdirSync
,
statSync
,
writeFileSync
}
from
"node:fs"
;
import
{
join
}
from
"node:path"
;
const
PACKAGE_NAME
=
"org.patternfly.showcase"
;
const
CLASS_NAME
=
"Code"
;
const
TARGET
=
"src/main/java"
;
const
START_COMMENT
=
"// @code-start:"
;
const
END_COMMENT
=
"// @code-end:"
;
const
SOURCES
=
[
{
globSuffix
:
"*Component.java"
,
relativeDir
:
"src/main/java/org/patternfly/showcase/component"
}
,
{
globSuffix
:
"*Extension.java"
,
relativeDir
:
"src/main/java/org/patternfly/showcase/extension"
}
,
{
globSuffix
:
"*Layout.java"
,
relativeDir
:
"src/main/java/org/patternfly/showcase/layout"
}
,
{
globSuffix
:
"*Chart.java"
,
relativeDir
:
"src/main/java/org/patternfly/showcase/chart"
}
,
]
;
const
args
=
process
.
argv
.
slice
(
2
)
;
if
(
args
.
length
===
0
||
!
args
[
0
]
)
{
console
.
error
(
"Missing base directory!"
)
;
process
.
exit
(
1
)
;
}
const
base
=
args
[
0
]
;
const
targetPath
=
join
(
base
,
TARGET
,
...
PACKAGE_NAME
.
split
(
"."
)
)
;
mkdirSync
(
targetPath
,
{
recursive
:
true
}
)
;
function
escapeJava
(
str
)
{
if
(
!
str
)
return
""
;
let
sb
=
""
;
for
(
const
c
of
str
)
{
switch
(
c
)
{
case
'"'
:
sb
+=
'\\"'
;
break
;
case
"\\"
:
sb
+=
"\\\\"
;
break
;
case
"\r"
:
sb
+=
"\\r"
;
break
;
case
"\n"
:
sb
+=
"\\n"
;
break
;
case
"\t"
:
sb
+=
"\\t"
;
break
;
default
:
sb
+=
c
;
}
}
return
sb
;
}
function
matchesGlob
(
name
,
globSuffix
)
{
if
(
globSuffix
.
startsWith
(
"*"
)
)
{
return
name
.
endsWith
(
globSuffix
.
substring
(
1
)
)
;
}
return
name
===
globSuffix
;
}
function
extractFromFile
(
filePath
)
{
const
content
=
readFileSync
(
filePath
,
"utf-8"
)
;
const
lines
=
content
.
split
(
"\n"
)
;
const
snippets
=
[
]
;
let
name
=
""
;
let
collectCode
=
false
;
let
leadingWhitespace
=
0
;
let
code
=
[
]
;
for
(
const
line
of
lines
)
{
if
(
line
.
includes
(
START_COMMENT
)
)
{
leadingWhitespace
=
line
.
indexOf
(
START_COMMENT
)
;
name
=
line
.
substring
(
line
.
indexOf
(
START_COMMENT
)
+
START_COMMENT
.
length
)
;
collectCode
=
true
;
}
else
if
(
collectCode
)
{
if
(
line
.
includes
(
END_COMMENT
+
name
)
)
{
snippets
.
push
(
{
name
,
code
:
[
...
code
]
}
)
;
name
=
""
;
collectCode
=
false
;
leadingWhitespace
=
0
;
code
=
[
]
;
}
else
{
code
.
push
(
line
.
length
<
leadingWhitespace
?
line
:
line
.
substring
(
leadingWhitespace
)
)
;
}
}
}
return
snippets
;
}
let
out
=
""
;
out
+=
`package
${
PACKAGE_NAME
}
;\n\n`
;
out
+=
"import java.util.Map;\n"
;
out
+=
"import java.util.HashMap;\n\n"
;
out
+=
"import javax.annotation.processing.Generated;\n\n"
;
out
+=
"/*\n"
;
out
+=
" * WARNING! This class is generated. Do not modify.\n"
;
out
+=
" */\n"
;
out
+=
'@Generated("code.mjs")\n'
;
out
+=
`public final class
${
CLASS_NAME
}
{\n\n`
;
out
+=
" private static final Map<String, String> snippets = new HashMap<>();\n\n"
;
out
+=
" static {"
;
let
counter
=
0
;
for
(
const
spec
of
SOURCES
)
{
const
dir
=
join
(
base
,
spec
.
relativeDir
)
;
let
files
;
try
{
files
=
readdirSync
(
dir
)
.
filter
(
f
=>
statSync
(
join
(
dir
,
f
)
)
.
isFile
(
)
&&
matchesGlob
(
f
,
spec
.
globSuffix
)
)
.
sort
(
)
;
}
catch
{
continue
;
}
for
(
const
file
of
files
)
{
const
snippets
=
extractFromFile
(
join
(
dir
,
file
)
)
;
for
(
const
{
name
,
code
}
of
snippets
)
{
out
+=
`\n snippets.put("
${
escapeJava
(
name
)
}
", "
${
escapeJava
(
code
.
join
(
"\n"
)
)
}
");`
;
counter
++
;
}
}
}
out
+=
"\n }\n\n"
;
out
+=
` public static String code(String name) {\n`
;
out
+=
' return snippets.getOrDefault(name, "n/a");\n'
;
out
+=
" }\n"
;
out
+=
"}\n"
;
writeFileSync
(
join
(
targetPath
,
`
${
CLASS_NAME
}
.java`
)
,
out
,
"utf-8"
)
;
console
.
log
(
`Processed
${
counter
}
code snippets`
)
;
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